Debugger: add ability to set script source from within OnBeforeCompile.

src/runtime.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 400 matching lines @@
   F(ChangeBreakOnException, 2, 1) \
   F(IsBreakOnException, 1, 1) \
   F(PrepareStep, 3, 1) \
   F(ClearStepping, 0, 1) \
   F(DebugEvaluate, 6, 1) \
   F(DebugEvaluateGlobal, 4, 1) \
   F(DebugGetLoadedScripts, 0, 1) \
   F(DebugReferencedBy, 3, 1) \
   F(DebugConstructedBy, 2, 1) \
   F(DebugGetPrototype, 1, 1) \
+  F(DebugSetScriptSource, 2, 1) \
   F(SystemBreak, 0, 1) \
   F(DebugDisassembleFunction, 1, 1) \
   F(DebugDisassembleConstructor, 1, 1) \
   F(FunctionGetInferredName, 1, 1) \
   F(LiveEditFindSharedFunctionInfosForScript, 1, 1) \
   F(LiveEditGatherCompileInfo, 2, 1) \
   F(LiveEditReplaceScript, 3, 1) \
   F(LiveEditReplaceFunctionCode, 2, 1) \
   F(LiveEditFunctionSourceUpdated, 1, 1) \
   F(LiveEditFunctionSetScript, 2, 1) \
@@ skipping 265 matching lines @@
 //---------------------------------------------------------------------------
 // Constants used by interface to runtime functions.
 
 class DeclareGlobalsEvalFlag:     public BitField<bool,         0, 1> {};
 class DeclareGlobalsNativeFlag:   public BitField<bool,         1, 1> {};
 class DeclareGlobalsLanguageMode: public BitField<LanguageMode, 2, 2> {};
 
 } }  // namespace v8::internal
 
 #endif  // V8_RUNTIME_H_